<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>

<div id="app">
<!--  1.直接拼接-->
    <h2>{{firstName}} {{lastName}}</h2>
<!--  2.调用methods属性-->
    <h2>{{getFullname()}}</h2>
<!--  3.通过computed计算-->
    <h2>{{fullName}}</h2>
</div>

<script src="../js/vue.js"></script>
<script>
    const vue = new Vue({
        el:'#app',
        data:{
            firstName:'Kobe',
            lastName:'Bryant',
        },
        methods: {
            getFullname() {
                return this.firstName + ' ' + this.lastName;
            }
        },
        computed:{
            fullName:function () {
                return this.firstName + ' ' + this.lastName;
            }
        }
    })
</script>


</body>
</html>